const moveActive = document.querySelector('.navigationBar')
window.addEventListener('scroll', function () {
    let moveScrollTop = document.documentElement.scrollTop
    let bodyTOP = document.body.scrollTop
    if (moveScrollTop > 450) {
        moveActive.style.backgroundColor = 'rgba(0,0,0,0.5)'
    }
    else {
        moveActive.style.backgroundColor = ''
    }
})